This might be a bump, or no one might reply, but I saw a few posts about making LOVE2D OPK games, and I had to ask, how would you deal with the buttons? I'm assuming some of the OPK games mentioned here initially used keyboard controls, and I looked throw the Love2D Tetris source, and it only had keyboard controls, so how was it worked out to be used on a handheld device with different controls?